

import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;

import javax.imageio.ImageIO;
import javax.swing.ImageIcon;

/*******************************************************************************
 * Description: 图片水印工具类
 * @author zengshunyao
 * @version 1.0
 */
public class ImgWaterMarkUtil {

    // 水印透明度
    private static float alpha = 0.7f;
    // 水印横向位置
    private static int positionWidth = 150;
    // 水印纵向位置
    private static int positionHeight = 300;
    // 水印文字字体
    private static Font font = new Font("宋体", Font.BOLD, 20);
    // 水印文字颜色
    private static Color color = Color.white;

    //文字水印位置铺满全屏
    private static ArrayList position1;
    private static ArrayList position2;

    /**
     *
     * @param alpha
     *            水印透明度
     * @param positionWidth
     *            水印横向位置
     * @param positionHeight
     *            水印纵向位置
     * @param font
     *            水印文字字体
     * @param color
     *            水印文字颜色
     */
    public static void setImageMarkOptions(float alpha, int positionWidth,
                                           int positionHeight, Font font, Color color) {
        if (alpha != 0.0f) {
            ImgWaterMarkUtil.alpha = alpha;
        }
        if (positionWidth != 0) {
            ImgWaterMarkUtil.positionWidth = positionWidth;
        }
        if (positionHeight != 0) {
            ImgWaterMarkUtil.positionHeight = positionHeight;
        }
        if (font != null) {
            ImgWaterMarkUtil.font = font;
        }
        if (color != null) {
            ImgWaterMarkUtil.color = color;
        }
    }

    /**
     * 给图片添加水印图片
     *
     * @param iconPath
     *            水印图片路径
     * @param srcImgPath
     *            源图片路径
     * @param targerPath
     *            目标图片路径
     */
    public static void markImageByIcon(String iconPath, String srcImgPath,
                                       String targerPath) {
        markImageByIcon(iconPath, srcImgPath, targerPath, null);
    }

    /**
     * 给图片添加水印图片、可设置水印图片旋转角度
     *
     * @param iconPath
     *            水印图片路径
     * @param srcImgPath
     *            源图片路径
     * @param targerPath
     *            目标图片路径
     * @param degree
     *            水印图片旋转角度
     */
    public static void markImageByIcon(String iconPath, String srcImgPath,
                                       String targerPath, Integer degree) {
        OutputStream os = null;
        try {

            Image srcImg = ImageIO.read(new File(srcImgPath));

            BufferedImage buffImg = new BufferedImage(srcImg.getWidth(null),
                    srcImg.getHeight(null), BufferedImage.TYPE_INT_RGB);

            // 1、得到画笔对象
            Graphics2D g = buffImg.createGraphics();

            // 2、设置对线段的锯齿状边缘处理
            g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                    RenderingHints.VALUE_INTERPOLATION_BILINEAR);

            g.drawImage(
                    srcImg.getScaledInstance(srcImg.getWidth(null),
                            srcImg.getHeight(null), Image.SCALE_SMOOTH), 0, 0,
                    null);
            // 3、设置水印旋转
            if (null != degree) {
                g.rotate(Math.toRadians(degree),
                        (double) buffImg.getWidth() / 2,
                        (double) buffImg.getHeight() / 2);
            }

            // 4、水印图片的路径 水印图片一般为gif或者png的，这样可设置透明度
            ImageIcon imgIcon = new ImageIcon(iconPath);

            // 5、得到Image对象。
            Image img = imgIcon.getImage();

            g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,
                    alpha));

            // 6、水印图片的位置
            g.drawImage(img, positionWidth, positionHeight, null);
            g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
            // 7、释放资源
            g.dispose();

            // 8、生成图片
            os = new FileOutputStream(targerPath);
            ImageIO.write(buffImg, "JPG", os);

            System.out.println("图片完成添加水印图片");

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if(null != os) {
                    os.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    /**
     * 给图片添加水印文字
     *
     * @param logoText
     *            水印文字
     * @param srcImgPath
     *            源图片路径
     * @param targerPath
     *            目标图片路径
     */
    public static void markImageByText(String logoText, String srcImgPath,
                                       String targerPath,int allFlag) {
        markImageByText(logoText, srcImgPath, targerPath, null,allFlag);
    }

    /**
     * 给图片添加水印文字、可设置水印文字的旋转角度
     *
     * @param logoText
     * @param srcImgPath
     * @param targerPath
     * @param degree
     */
    public static void markImageByText(String logoText, String srcImgPath,
                                       String targerPath, Integer degree,int allFlag) {

        InputStream is = null;
        OutputStream os = null;
        try {
            // 1、源图片
            Image srcImg = ImageIO.read(new File(srcImgPath));
            BufferedImage buffImg = new BufferedImage(srcImg.getWidth(null),
                    srcImg.getHeight(null), BufferedImage.TYPE_INT_RGB);

            // 2、得到画笔对象
            Graphics2D g = buffImg.createGraphics();
            // 3、设置对线段的锯齿状边缘处理
            g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                    RenderingHints.VALUE_INTERPOLATION_BILINEAR);
            g.drawImage(
                    srcImg.getScaledInstance(srcImg.getWidth(null),
                            srcImg.getHeight(null), Image.SCALE_SMOOTH), 0, 0,
                    null);
            // 4、设置水印旋转
            if (null != degree) {
                g.rotate(Math.toRadians(degree),
                        (double) buffImg.getWidth() / 2,
                        (double) buffImg.getHeight() / 2);
            }
            // 5、设置水印文字颜色
            g.setColor(color);
            // 6、设置水印文字Font
            g.setFont(font);
            // 7、设置水印文字透明度
            g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,
                    alpha));
            // 8、第一参数->设置的内容，后面两个参数->文字在图片上的坐标位置(x,y)
            if (allFlag == 1){
                int width = srcImg.getWidth(null);
                int height = srcImg.getHeight(null);
                position1 = new ArrayList();
                position2 = new ArrayList();
                position1.add(0);
                position1.add(width/4);
                position1.add(width/2);
                position1.add(width*3/4);
                position1.add(width);
                position2.add(0);
                position2.add(height/4);
                position2.add(height/2);
                position2.add(height*3/4);
                position2.add(height);

                for (int i = 0; i < position1.size(); i++) {
                    for (int j = 0; j < position2.size(); j++) {
                        g.drawString(logoText,(Integer) position1.get(i),(Integer) position2.get(j));
                    }
                }
            }else {
                g.drawString(logoText,positionWidth,positionHeight);
            }

            // 9、释放资源
            g.dispose();
            // 10、生成图片
            os = new FileOutputStream(targerPath);
            ImageIO.write(buffImg, "JPG", os);

            System.out.println("图片完成添加水印文字");

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (null == is) {
                } else {
                    is.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            try {
                if (null != os) {
                    os.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        String srcImgPath = "C:\\Users\\Xiaoi\\Desktop\\waterTest.png";
        String logoText = "刘肖阳  1412";
        String iconPath = "d:/2.jpg";

        String targerTextPath = "C:\\Users\\Xiaoi\\Desktop\\waterTest1.png";
        String targerTextPath2 = "C:\\Users\\Xiaoi\\Desktop\\waterTest2.png";

        String targerIconPath = "d:/qie_icon.jpg";
        String targerIconPath2 = "d:/qie_icon_rotate.jpg";

        System.out.println("给图片添加水印文字开始...");
        // 给图片添加水印文字
        markImageByText(logoText, srcImgPath, targerTextPath,0);
        // 给图片添加水印文字,水印文字旋转-45
        markImageByText(logoText, srcImgPath, targerTextPath2, -45,1);
        System.out.println("给图片添加水印文字结束...");

        System.out.println("给图片添加水印图片开始...");
        setImageMarkOptions(0.3f, 1, 1, null, null);
//        // 给图片添加水印图片
//        markImageByIcon(iconPath, srcImgPath, targerIconPath);
//        // 给图片添加水印图片,水印图片旋转-45
//        markImageByIcon(iconPath, srcImgPath, targerIconPath2, -45);
//        System.out.println("给图片添加水印图片结束...");

    }

}
